Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to JP11586972ApriorityCriticalpatent/JPS5237921B2/ja
Priority to GB5595272Aprioritypatent/GB1420320A/en
Priority to US312326Aprioritypatent/US3902121A/en
Priority to FR7243611Aprioritypatent/FR2162556B1/fr
Priority to DE2259984Aprioritypatent/DE2259984C3/de
Priority to CA158,283Aprioritypatent/CA999087A/en
Publication of JPS4974401ApublicationCriticalpatent/JPS4974401A/ja
Publication of JPS5237921B2publicationCriticalpatent/JPS5237921B2/ja